type queueItem struct {
	input []byte             // raw input sent to the worker
	dst   chan []jstream.KVS // result of block decode
	err   error              // any error encountered will be set here
}

// Read - reads single record.
// Once Read is called the previous record should no longer be referenced.
func (r *PReader) Read(dst sql.Record) (sql.Record, error) {

// error returned when more than a single policy is specified when only one is
// expected.
var errTooManyPolicies = errors.New("Only a single policy may be specified here.")

// error returned in IAM subsystem when an external users systems is configured.
var errIAMActionNotAllowed = errors.New("Specified IAM action is not allowed")

// error returned in IAM service account

	"strconv"

	"github.com/minio/minio/internal/bucket/lifecycle"
)

//go:generate stringer -type lcEventSrc -trimprefix lcEventSrc_ $GOFILE
type lcEventSrc uint8

//revive:disable:var-naming Underscores is used here to indicate where common prefix ends and the enumeration name begins
const (
	lcEventSrc_None lcEventSrc = iota
	lcEventSrc_Heal
	lcEventSrc_Scanner
	lcEventSrc_Decom
	lcEventSrc_Rebal
	lcEventSrc_s3HeadObject

const (
	// Block size used for all internal operations version 1.

	// TLDR..
	// Not used anymore xl.meta captures the right blockSize
	// so blockSizeV2 should be used for all future purposes.
	// this value is kept here to calculate the max API
	// requests based on RAM size for existing content.
	blockSizeV1 = 10 * humanize.MiByte

	// Block size used in erasure coding version 2.
	blockSizeV2 = 1 * humanize.MiByte

			LRWMutex: lsync.NewLRWMutex(),
		}
		// Add a count to indicate that a parallel unlock doesn't clear this entry.
	}
	nsLk.ref++
	n.lockMap[resource] = nsLk
	n.lockMapMutex.Unlock()

	// Locking here will block (until timeout).
	if readLock {
		locked = nsLk.GetRLock(ctx, opsID, lockSource, timeout)
	} else {
		locked = nsLk.GetLock(ctx, opsID, lockSource, timeout)
	}

	KNAME=$(uname -s)
	ARCH=$(uname -m)
	case "${KNAME}" in
	SunOS)
		ARCH=$(isainfo -k)
		;;
	esac
}

## FIXME:
## In OSX, 'readlink -f' option does not exist, hence
## we have our own readlink -f behavior here.
## Once OSX has the option, below function is good enough.
##
## readlink() {
##     return /bin/readlink -f "$1"
## }
##
readlink() {
	TARGET_FILE=$1

	cd $(dirname $TARGET_FILE)

	serviceFreeze                             // Freeze all S3 API calls.
	serviceUnFreeze                           // Un-Freeze previously frozen S3 API calls.
	// Add new service requests here.
)

// Global service signal channel.
var globalServiceSignalCh = make(chan serviceSignal)

// GlobalContext context that is canceled when server is requested to shut down.

Add below section to your `prometheus.yml`
```yaml
alerting:
  alertmanagers:
  - static_configs:
    - targets: ['localhost:9093']
rule_files:
  - rules.yml
```
Here `rules.yml` is the file which should contain the alerting rules defined.

## Add rules for your deployment

```
λ git checkout RELEASE.2021-04-22T15-44-28Z
```

Create a branch and proceed to push the branch **upstream**
> (upstream here points to ******@****.***:minio/minio.git)

```
λ git branch -m RELEASE.2021-04-22T15-44-28Z.hotfix
λ git push -u upstream RELEASE.2021-04-22T15-44-28Z.hotfix
```

	case aggFnAvg:
		if e.aggregate.runningCount == 0 {
			// No rows were seen by AVG.
			return FromNull(), nil
		}
		err := e.aggregate.runningSum.arithOp(opDivide, FromInt(e.aggregate.runningCount))
		return e.aggregate.runningSum, err

	case aggFnMin:
		if !e.aggregate.seen {
			// No rows were seen by MIN
			return FromNull(), nil
		}
		return e.aggregate.runningMin, nil